열대산 도입마(Dioscorea alata L.)의 생육과 괴경비대

Studies on the growth and enlargemet of tuber in tropical yams (Dioscorea alata L.)

  • 발행 : 2002.10.01

초록

도입 마(Dioscorea alate L.) 계통 중 품질이 우수하고 이 용 가치가 기대되는 열대산 마(D. alata)를 우리나라에서 재배 시 그 가능성과 제 기관의 생육특성을 밝히기 위하여 실시하였다 D. alata. 및 D. opposita의 생육패턴 및 수량성을 비교 도입 재배 가능성을 시험하였다. 1. 4월 하순에 정식한 마의 지상부는 70일까지는 완만한 생육을 보였으나, 그후에 급격히 생장하여, 200일 이후 지상부의 하부가 낙엽지며 감소하였다. 생육은 D. atara, 단마 순이였다. 2. 도입마(D. alate)의 형성은 정식 50일 정도에서 일어났으나, 그 후 비대생장이 늦어서 150일 이후에 급격 히 비대하였다. 3. D. alata(도입마)의 일반성분은 D. opposita(단가) 보다 단백질, 섬유, 지방의 함량이 낮았다. 4. D. alata의 경도를 보면 2696.2로 D. opposita 4946.9 보다 약 2배정도 낮고, 색도 중 명도(L)는 D. alata가 73.99으로 D. opposite 보다 높았다.

This study was carried out to determine agronomic and genetic characteristics of the production process in tropical yams(Dioscorea atata L.). To make clear the possibility of cultivation of tropical yams in the Suwon area, the growth of the aboveground parts and the enlargement of tuber of Dioscorea alata, were investigated. The aboveground parts of the plants whose sprouted mother tuber were planted in late April were grown slowly until the 70-days after planting and grown rapidly after. from about 150-days after plantation, total length of vines slowly decreased due to the burning of the branch vines of lower modes. With regard to the branching progressed to 4th for the solo yam and to 6th for purple yam. The secondary branches tended to grow better. When the formation of daughter tubers was observed at the 50-days after planting, their enlargement was very slow. The rapid growth of tubers began at the 140-days and continued to the 190-days. General components such as protein, fiber, and lipid were higher in D. opposita rather than in D. alata. Hardness of D. alata was 2696.2 while that of D. opposita was 4946.9. Lightness of D. alata was 73.99, being higher than that of D. opposita.

키워드

참고문헌

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